Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Reexamination Certificate
2007-07-17
2007-07-17
Hellner, Mark (Department: 3663)
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
Reexamination Certificate
active
11283041
ABSTRACT:
An acoustic source for infrasonic electromagnetic wave exploration including: an electrically conductive, generally cylindrical tubular member for containing an electrically conductive fluid, the tubular member having a closed top end, an open bottom end, an interior wall and an internal diameter; an electrode axially positioned within the tubular member, wherein the electrode is axially positioned within the tubular member at a distance equivalent to about three times the internal diameter of the tubular member to enable the acoustic source to produce high energy acoustic waves having a substantial portion of acoustic wave energy in the infrasonic frequency range; means for electrically connecting the electrode to the negative electrical pole of an external source of DC electric power; and means for electrically connecting the tubular member to one of: a positive electrical pole of the external source of DC electric power; an electrical ground; and a combination of the above.
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Hellner Mark
Lee Samuel S.
Procopio Cory Hargreaves & Savitch LLP
Seismoelectric Soundings, Inc.
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